<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let print = prompt('请输入一个星期数')
        switch (print) {
            case '星期一':
                document.write('Monday')
                break;
                case '星期二':
                document.write('Tuesday')
                break;
                case '星期三':
                document.write('Wednesday')
                break;  
                case '星期四':
                document.write('Thursday')
                break;  
                case '星期五':
                document.write('Friday')
                break;
                case '星期六':
                document.write('Saturday')
                break;
                case '星期日':
                document.write('Sunday')
                break;
            default:
                break;
        }
    </script>
</body>
</html>